P5.5 IN VIVO ASSESSMENT OF REGULATORY MECHANISM OF THE SYSTEMIC ARTERIAL AND VENOUS SYSTEM FOR THE PREVENTION OF ORTHOSTATIC INTOLERANCE by C. Leguy, A. Blaber, J. Rittweger, L. Beck

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Orthostatic Intolerance after COVID-19 Infection: Is Disturbed Microcirculation of the Vasa Vasorum of Capacitance Vessels the Primary Defect? by Klaus J. Wirth, Matthias Löhn

Subjects: “…orthostatic intolerance…”
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Orthostatic intolerance syndromes after hematopoietic cell transplantation: clinical characteristics and therapeutic interventions in a single-center experience by Alessandra Vecchié, Georgia Thomas, Edoardo Bressi, Aldo Bonaventura, Justin M. Canada, David Chuquin, Dinesh Kadariya, Usman Piracha, Delia Endicott, Roshanak Markley, Amir Toor, Michael Hess, Antonio Abbate

“…Pharmacological therapy was required in 38 (91%) cases, including a b-adrenergic blocker (n = 24, 57%), midodrine (n = 24, 57%) and fludrocortisone (n = 7, 18%). Conclusion Orthostatic intolerance syndromes are commonly diagnosed in patients referred to the cardiologist after HCT, involving approximately 1/3 of patients and requiring pharmacological therapy to cope with symptoms in the majority of cases. …”
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Head-Up Tilt Sleeping to Treat Orthostatic Intolerance in a Patient with Advanced Parkinson’s Disease: A Case Report by Amber H. van der Stam, Sharon Shmuely, Nienke M. de Vries, Roland D. Thijs, Mirjam van Kesteren-Biegstraaten, Bastiaan R. Bloem

“…This case report presents a patient whose symptoms of orthostatic intolerance were successfully treated with the non-pharmacological method of head-up tilt sleeping (HUTS). …”
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Orthostatic intolerance with tachycardia (postural tachycardia syndrome) and without (hypocapnic cerebral hypoperfusion) represent a spectrum of the same disorder by Peter Novak, Peter Novak, David M. Systrom, David M. Systrom, Alexandra Witte, Sadie P. Marciano

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Cardiocirculatory responses to human passive walking-like leg movement in the standing posture by Hisayoshi Ogata

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Postoperative orthostatic intolerance following fast-track unicompartmental knee arthroplasty: incidence and hemodynamics—a prospective observational cohort study by Ana-Marija Hristovska, Louise B. Andersen, Bodil Uldall-Hansen, Henrik Kehlet, Anders Troelsen, Kirill Gromov, Nicolai B. Foss

Subjects: “…Orthostatic intolerance…”
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The Application of Head-Up Tilt Test to Diagnose Hemodynamic Type of Orthostatic Intolerance in Children Aged Between 3 and 5 Years by Runmei Zou, Shuo Wang, Fang Li, Ping Lin, Juan Zhang, Yuwen Wang, Yi Xu, Cheng Wang

Subjects: “…orthostatic intolerance…”
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Impact of Daily Lower‐Body Negative Pressure or Cycling Followed by Venous Constrictive Thigh Cuffs on Bedrest‐Induced Orthostatic Intolerance by Jan‐Niklas Hönemann, Fabian Hoffmann, Laura de Boni, Peter Gauger, Edwin Mulder, Stefan Möstl, Karsten Heusser, Marie‐Therese Schmitz, Marcel Halbach, Steven S. Laurie, Stuart M. C. Lee, Brandon R. Macias, Jens Jordan, Jens Tank

“…Background Orthostatic intolerance occurs following immobilization in patients on Earth and in astronauts after spaceflight. …”
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Early Cerebral Hypoperfusion in Patients with Orthostatic Intolerance Without Tachycardia During Head-Up Tilt Test is Independent of Vasovagal Response by J. Antonio González-Hermosillo, Alan Rubio-Vega, Karla A. F. González-Olvera, Manuel Sierra-Beltrán, Andrei Kostine, Claudia Lerma

Subjects: “…Orthostatic intolerance. Reflex syncope. Cerebral hypoperfusion. …”
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Cerebral Perfusion Monitoring Using Near-Infrared Spectroscopy During Head-Up Tilt Table Test in Patients With Orthostatic Intolerance by Yoo Hwan Kim, Yoo Hwan Kim, Seung-ho Paik, Zephaniah Phillips V, Nam-Joon Jeon, Byung-Jo Kim, Byung-Jo Kim, Beop-Min Kim

Subjects: “…orthostatic intolerance…”
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Prevalence and associated factors of postoperative orthostatic intolerance at University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia, 2022: cross sectional study by Negesse Zurbachew Gobezie, Nigussie Simeneh Endalew, Hailu Yimer Tawuye, Habtu Adane Aytolign

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High proportions of post-exertional malaise and orthostatic intolerance in people living with post-COVID-19 condition: the PRIME post-COVID study by Demi M. E. Pagen, Demi M. E. Pagen, Maarten Van Herck, Maarten Van Herck, Maarten Van Herck, Céline J. A. van Bilsen, Céline J. A. van Bilsen, Stephanie Brinkhues, Kevin Konings, Casper D. J. den Heijer, Casper D. J. den Heijer, Martijn A. Spruit, Martijn A. Spruit, Christian J. P. A. Hoebe, Christian J. P. A. Hoebe, Christian J. P. A. Hoebe, Nicole H. T. M. Dukers-Muijrers, Nicole H. T. M. Dukers-Muijrers

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Falls Risk, Circadian Rhythms and Melatonin: Current Perspectives by Goswami N, Abulafia C, Vigo D, Moser M, Cornelissen G, Cardinali D

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Dysautonomia in ‘long COVID’: Case report by Arijita Banerjee, Sumit Kumar

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Case Report, Practices Survey and Literature Review of an Under-Recognized Pediatric Vascular Disorder: The BASCULE Syndrome by Natacha Baurens, Clémence Briand, Lisa Giovannini-Chami, Lisa Giovannini-Chami, Jean-Marie De Guillebon De Resnes, Thomas Hubiche, Christine Chiaverini, Pascal Giordana, Georges Leftheriotis, Julie Bernardor, Julie Bernardor, Julie Bernardor

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Falls and Fall-Prevention in Older Persons: Geriatrics Meets Spaceflight! by Nandu Goswami, Nandu Goswami

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Suppression of cardiocirculatory responses to orthostatic stress by passive walking-like leg movement in healthy young men by Ogata Hisayoshi, Fujimaru Ikuyo, Yamada Keiko, Kondo Takaharu

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Circulating Autoantibodies Against Vasoactive Biomarkers Related to Orthostatic Intolerance in Long COVID Patients Compared to No-Long-COVID Populations: A Case-Control Study by Emilie Han, Katrin Müller-Zlabinger, Ena Hasimbegovic, Laura Poschenreithner, Nina Kastner, Babette Maleiner, Kevin Hamzaraj, Andreas Spannbauer, Martin Riesenhuber, Anja Vavrikova, Antonia Domanig, Christian Nitsche, Dominika Lukovic, Thomas A. Zelniker, Mariann Gyöngyösi

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Orthostatic Hypertension in Children: An Update by Yang Hu, Yang Hu, Hongfang Jin, Junbao Du, Junbao Du

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